Home / 145,868.24-218,782.91-40,678.40

Finding the Fourth Proportional to 145,868.24, 218,782.91 and 40,678.40

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Solution

The fourth proportional to 145,868.24, 218,782.91 and 40,678.40 is: 61,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,868.24 : 218,782.91 = 40,678.40 : x
  2. Step 2: Convert to fraction form
    145,868.24/218,782.91 = 40,678.40/x
  3. Step 3: Cross multiply
    145,868.24x = 218,782.91 × 40,678.40
  4. Step 4: Simplify right side
    145,868.24x = 8,899,738,726.14
  5. Step 5: Solve for x
    x = 8,899,738,726.14/145,868.24
  6. Step 6: Final answer
    x = 61,012.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.